Get first day in a month from NSCalendar

Question

I have this subset of a method that needs to get day one of the current month.

NSDate *today = [NSDate date];  // returns correctly 28 february 2013
NSCalend         


        

Answer 1

By creating new variable is expensive on memory usage, it's better using date formatter to get the first day of the current month

today = [NSDate date];

firstDayDateFormatter = [[NSDateFormatter alloc] init];
[firstDayDateFormatter setDateFormat:@"01-MM-yyyy"];
dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"dd-MM-yyyy"];
[dateFormatter setLocale:[NSLocale localeWithLocaleIdentifier:@"en_US"]];
firstDayOfTheMonth = [mdfDateFormat dateFromString:[firstDayDateFormatter stringFromDate:today]];